Abstract
In this paper, tunable bandstop filters using defected ground structure (DGS) sections are presented. The DGS section is obtained by etching the conventional ground plane. To adjust the stopband, voltage controlled variable capacitor diodes (VVC) are equipped on the DGS section. The center frequency of the filter is varied from 1.44 GHz to 3.19 GHz as the reverse bias voltage is changed from 0 V to 20 V. The stopband of the proposed filter has a tunable range of 76 %. Using more than two DGS units, deeper suppression and wider tunable bandwidth are yielded. Good agreements between the simulated and measured results are obtained.
| Original language | English |
|---|---|
| Title of host publication | APMC 2005 |
| Subtitle of host publication | Asia-Pacific Microwave Conference Proceedings 2005 |
| DOIs | |
| Publication status | Published - 2005 Dec 1 |
| Event | APMC 2005: Asia-Pacific Microwave Conference 2005 - Suzhou, China Duration: 2005 Dec 4 → 2005 Dec 7 |
Publication series
| Name | Asia-Pacific Microwave Conference Proceedings, APMC |
|---|---|
| Volume | 1 |
Other
| Other | APMC 2005: Asia-Pacific Microwave Conference 2005 |
|---|---|
| Country | China |
| City | Suzhou |
| Period | 05/12/4 → 05/12/7 |
Keywords
- Bandstop filter
- Microstrip filter
- Tunable filter
- Voltage control
ASJC Scopus subject areas
- Engineering(all)
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Cite this
Park, J. D., Sung, Y. J., Lee, S. H., & Kim, Y. S. (2005). Tunable bandstop filters using defected ground structure with active devices. In APMC 2005: Asia-Pacific Microwave Conference Proceedings 2005 [1606278] (Asia-Pacific Microwave Conference Proceedings, APMC; Vol. 1). https://doi.org/10.1109/APMC.2005.1606278